Below are examples of different finishes
Black walnut grows naturally over a large area extending from Vermont westward to Nebraska and southward to southern Georgia and southern Texas. The area of greatest commercial production is limited to the central part of this natural range.
Furniture is the outstanding use of black walnut, with gunstocks, kitchen cabinets, and architectural woodwork also using large amounts.
The wood is hard, strong, and stiff and has good shock resistance. Black walnut works easily with handtools and has excellent machining properties. It finishes beautifully with a handsome grain pattern. It takes and holds paints and stains exceptionally well, can be readily polished, and can be satisfactorily glued. The wood can be satisfactorily kilndried or air-dried and holds its shape well after seasoning. Kiln drying 1-inch lumber from green to 6 percent moisture content requires 10-16 days.
(RS Boone, State University of New York College of Environmental Science and Forestry)